package com.auguigu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {
    /**
     * 正常访问 ok
     *
     * @param id
     * @return
     */
    public String paymentInfo_OK(Integer id) {
        return "线程池： " + Thread.currentThread().getName() + "paymentInfo_OK,id: " + id + "\t O(∩_∩)O哈哈";
    }


    /**
     * 异常访问 ok
     *
     * @param id
     * @return
     */
    @HystrixCommand(commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000")
    }, fallbackMethod = "timeOutHandler")
    public String paymentInfo_TimeOut(Integer id) {
        int time = 4;
        try {
            TimeUnit.SECONDS.sleep(time);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池： " + Thread.currentThread().getName() + "paymentInfo_TimeOut,id: " + id + "\t ┭┮﹏┭┮呜呜 耗时" + time + "秒钟";
    }

    public String timeOutHandler(@PathVariable Integer id) {
        return "线程池： " + Thread.currentThread().getName() + "8001系统繁忙，请稍后再试！" + id + "\t ┭┮﹏┭┮呜呜";
    }

    //服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),  //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),   //请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),  //时间范围
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"), //失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if (id < 0){
            throw new RuntimeException("*****id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t"+"调用成功,流水号："+serialNumber;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id 不能负数，请稍候再试,(┬＿┬)/~~     id: " +id;
    }


}
